Home  Documentation  Research  Download  Examples  Contact Running XArch Command Center Maintaining Archives Query Language  C O M M A N D   C E N T E R The Command Center is the graphical user interface that allows you to interact with an archiver instance. After starting the Command Center commands can be entered in the command field and executed using either of three methods: Click on the command execute button Press Ctrl+Enter The menu Command > Execute The following is a brief overview of the current XArch Command Center commands. For several of the common commands there is also a corresponding entry in the menu Command: ALTER ARCHIVE name SET property-list Modifies the properties of the specified archive. CREATE ARCHIVE name OF type {HAVING PROPERTIES property-list} Create a new archive of the given type (driver) specifying an optional (driver specific) list of archive properties. DESCRIBE ARCHIVE name Lists the properties of the specified archive. DROP ARCHIVE name Deletes the specified archive with all its content from the local file system. EXPORT INTO file query Writes the query results into the specified file. EXTRACT INTO file VERSION version FROM archive Writes the specified document version into the specified file. In contrast to the EXPORT command timestamps are ommited by EXTRACT. INSERT INTO name {AS version} {IF HAS CHANGES} {NO VALIDATION} FROM [SOURCE data-source | TYPE type document-properties] Merges a new document version into an existing archive. LIST ARCHIVES Lists the archives in the current archiver instance. LIST VERSIONS FOR name List the names of all the versions in the specified archive. RENAME VERSION version-old TO version-new FOR ARCHIVE archive Renames a specified version for a given archive. SHOW STATISTICS FOR archive Shows statistics about size and number of elements for the specified archive. ALTER DATA SOURCE name SET property-list Modifies the properties of the specified data source. CREATE DATA SOURCE name OF type HAVING PROPERTIES property-list Create a new data source of the given type (driver) specifying a (driver specific) list of properties. DESCRIBE DATA SOURCE name Lists the properties of the specified data source. DROP DATA SOURCE name Deletes the specified data source with all its content from the local file system. LIST DATA SOURCES Lists the data sources in the current archiver instance. DESCRIBE DRIVER name Lists the properties of the specified IO driver. LIST DRIVERS Lists the currently available drivers. DESCRIBE INSTANCE Lists the properties of the current archiver instance. EXIT Exit Command Center. Config-File The config-file maintains a set of properties that control the XArch Command Center. The most notable properties are: DEFAULT INSTANCE The config-file of the archiver instance that is to be used at start-up. HISTORY FILE An optional history-file retaining the latest commands for easy re-use. If the specified file does not exist it will be created. HISTORY SIZE The max. number of history commands retained in the history-file. These properties can be set using menu Extras > Properties.